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Date: Mon, 7 May 2007 07:28:11 -0700 (PDT)
From: David Rientjes <rientjes@...gle.com>
To: Andi Kleen <ak@...e.de>
cc: linux-kernel@...r.kernel.org
Subject: [2.6.22 patch 1/4] x86_64: rename and export bad_srat to kernel code
Rename bad_srat() to disable_srat() and include it in asm-x86_64/numa.h so
that it can be referenced from generic x86-64 boot code. It's needed for
NUMA emulation disabling of active SRAT regions and apicid_to_node[]
population.
Signed-off-by: David Rientjes <rientjes@...gle.com>
---
arch/x86_64/mm/srat.c | 16 ++++++++--------
include/asm-x86_64/numa.h | 6 ++++++
2 files changed, 14 insertions(+), 8 deletions(-)
diff --git a/arch/x86_64/mm/srat.c b/arch/x86_64/mm/srat.c
--- a/arch/x86_64/mm/srat.c
+++ b/arch/x86_64/mm/srat.c
@@ -74,7 +74,7 @@ static __init void cutoff_node(int i, unsigned long start, unsigned long end)
}
}
-static __init void bad_srat(void)
+void __init disable_srat(void)
{
int i;
printk(KERN_ERR "SRAT: SRAT not used.\n");
@@ -133,7 +133,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
if (srat_disabled())
return;
if (pa->header.length != sizeof(struct acpi_srat_cpu_affinity)) {
- bad_srat();
+ disable_srat();
return;
}
if ((pa->flags & ACPI_SRAT_CPU_ENABLED) == 0)
@@ -142,7 +142,7 @@ acpi_numa_processor_affinity_init(struct acpi_srat_cpu_affinity *pa)
node = setup_node(pxm);
if (node < 0) {
printk(KERN_ERR "SRAT: Too many proximity domains %x\n", pxm);
- bad_srat();
+ disable_srat();
return;
}
apicid_to_node[pa->apic_id] = node;
@@ -289,7 +289,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
if (srat_disabled())
return;
if (ma->header.length != sizeof(struct acpi_srat_mem_affinity)) {
- bad_srat();
+ disable_srat();
return;
}
if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
@@ -303,7 +303,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
node = setup_node(pxm);
if (node < 0) {
printk(KERN_ERR "SRAT: Too many proximity domains.\n");
- bad_srat();
+ disable_srat();
return;
}
i = conflicting_nodes(start, end);
@@ -316,7 +316,7 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
"SRAT: PXM %d (%lx-%lx) overlaps with PXM %d (%Lx-%Lx)\n",
pxm, start, end, node_to_pxm(i),
nodes[i].start, nodes[i].end);
- bad_srat();
+ disable_srat();
return;
}
nd = &nodes[node];
@@ -407,7 +407,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
return -1;
if (!nodes_cover_memory()) {
- bad_srat();
+ disable_srat();
return -1;
}
@@ -415,7 +415,7 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
if (memnode_shift < 0) {
printk(KERN_ERR
"SRAT: No NUMA node hash function found. Contact maintainer\n");
- bad_srat();
+ disable_srat();
return -1;
}
diff --git a/include/asm-x86_64/numa.h b/include/asm-x86_64/numa.h
--- a/include/asm-x86_64/numa.h
+++ b/include/asm-x86_64/numa.h
@@ -33,6 +33,12 @@ static inline void clear_node_cpumask(int cpu)
#define clear_node_cpumask(cpu) do {} while (0)
#endif
+#ifdef CONFIG_ACPI_NUMA
+extern void __init disable_srat(void);
+#else
+#define disable_srat() do {} while (0)
+#endif
+
#define NUMA_NO_NODE 0xff
#endif
-
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